Mumbai, July 6 -- Benchmark indices extended gains for a fourth straight session on Monday, supported by broad-based buying. Encouraging Q1 business updates, easing crude oil prices, improving monsoon progress and receding geopolitical concerns lifted sentiment. The Nifty closed above the 24,400 mark. Auto, consumer durables, oil & gas and metal stocks led the gains, while IT and PSU bank shares ended lower. Broader market also remained firm, reflecting sustained buying interest.

The S&P BSE Sensex jumped 521.16 points or 0.67% to 78,285.07. The Nifty 50 index rose 159.50 points or 0.66% to 24,430.35. In the four consecutive trading sessions, the Sensex rallied 2.36% while the Nifty jumped 2.36%.

HDFC Bank (up 3.36%), Reliance Industrie...